MT9222 Datasheet | MagnTek

Description The Magn Tek® MT9222 product series is a fully integrated Hall Effect-based isolated linear current sensor device family designed for AC or DC current sensing in industrial, mercial, and munications systems. Each of the MT9222 consists of a precise, lowoffset, linear Hall circuit with a low-resistance current conductor path located near the surface of the die. Applied current flowing through this low-resistance current conductor path generates a magnetic field that the Hall IC converts into a proportional voltage. The current is sensed differentially in order to reject mon-mode fields, improving accuracy in magnetically noisy environments. Device accuracy is optimized through the close proximity of the magnetic field to the Hall transducer. A precise, proportional voltage is provided by the lowoffset, chopper-stabilized BCD Hall IC, which has been accurately calibrated when it is manufactured. The output of the device has a positive slope (>VOQ) when an increasing current flows through the primary current conduction path (from pins 1,2,3 and 4, to pins 5,6,7 and 8). The internal resistance of this conductive path is 0.85 mΩ typical, providing low-power loss. The terminals of the conductive path are electrically isolated from the signal leads (pins 9 through 16). This allows the MT9222 current sensor IC to be used in high-side current sense applications without use other costly isolation techniques. The MT9222 family provides SOP-16W package to customers, The package is Ro HS pliant. 2 Features ￭ ±0.5% Typical Linearity Over Temperature ￭ Fast Output Response Time: 4 μs (typ.) ￭ 150k Hz Signal Bandwidth ￭ 5.0V Single Supply Operation ￭ -40℃~125℃ Operating Temperature ￭ Primary Conductor Resistance ---0.85mΩ ￭ Sensing Current Range: (AC or DC) ---±20A, ±25A, ±30A, ±50A, ±65A ---+40A, +50A ￭ Output Voltage Proportional to AC or DC Current ￭ Ratiometric Output from Supply Voltage ￭ Extremely Stable Quiescent Output Voltage ￭ Device Bandwidth is Set via FILTER...